Finding the Fourth Proportional to 11,728,871.07, 16,176,245.81 and 8,255,707.31
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Solution
The fourth proportional to 11,728,871.07, 16,176,245.81 and 8,255,707.31 is: 11,386,121.47
Step by Step Solution
- Step 1: Write the proportion equation
11,728,871.07 : 16,176,245.81 = 8,255,707.31 : x - Step 2: Convert to fraction form
11,728,871.07/16,176,245.81 = 8,255,707.31/x - Step 3: Cross multiply
11,728,871.07x = 16,176,245.81 × 8,255,707.31 - Step 4: Simplify right side
11,728,871.07x = 133,546,350,659,814.09 - Step 5: Solve for x
x = 133,546,350,659,814.09/11,728,871.07 - Step 6: Final answer
x = 11,386,121.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.